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You may have seen the keyword lambda
appear in this week's content, and you'll certainly see it appear more as you
spend more and more time with Python and data science. Lambda's are Python's way of
creating anonymous functions. These are the same as othe

We talked about strings when we
talked about lists and slicing, and you've seen ways to break up strings
through use of the split function, and through direct indexing. Strings in Python can be a bit
frustrating too, and I want to share some more details

In the rest of this module, I'm going to provide a very basic overview
of the Python programming language. If you have a background in programming, this overview should be enough to help you
be successful in the rest of this course and the following cours

The absence of static typing in Python
doesn't mean that there aren't types. The Python language has a built in
function called type which will show you what type of given reference is. Some of the common types includes strings,
the type is discussed. Int

Interest in data science
is an all time high, and really has exploded in popularity
in the last couple of years. A fun way to see this is to hit
up the Google Trends website. Google Trends shows search
keyword information over time. We could see that the

Before we jump into Python, I want to show you a couple of
features of the Coursera platform. Here is our course that
I have logged in to. You see that there is three weeks. When we click on a week we have
built in Jupyter notebooks. Now these are a great

Welcome to an introduction
to Data Science with Python. This course is the first course
out of five in a larger Python and Data Science Specialization. Each course progressively builds on your
knowledge from previous courses to give you a well-rounded vie

0:08
Welcome to today's tutorial, where we'll be learning the basics of iterating through a CSV file to create dictionaries and collect summary statistics.
0:17
First, let's import the CSV module, which will assist us in reading in our CSV file.
0:24
Us

A lot of analysis you do might
relate to dates and times. For instance, finding the average
number of sales over a given period. Selecting a list of products to data mine
if they were purchased in a given period. Or trying to find the period with
the most

Up to this point, we haven't spoken
much about object-oriented Python. While functions play a big role in the
Python ecosystem, Python does have classes which can have attached methods,
and be instantiated as objects. Now, this course isn't about the
nitt